APA (7th ed.) Citation

Etherton, A. R. B. (1967). A new Certificate comprehension course. Longmans.

Chicago Style (17th ed.) Citation

Etherton, Alan R. Brian. A New Certificate Comprehension Course. London: Longmans, 1967.

MLA (9th ed.) Citation

Etherton, Alan R. Brian. A New Certificate Comprehension Course. Longmans, 1967.

Warning: These citations may not always be 100% accurate.